Thanks for the responses. So I made a mistake, it’s actually a 4” lift kit but a 6” total as y’all stated. The wheels are a -24 offset and 4.5” backspacing. The front wheels would not clear the calipers of the Brembo brakes so we had to add the 1/4” backspacers.
Hey guys. Just made an account! So my dad just bought a 2019 Sierra AT4 and installed a 6” RC lift with 35” ridge grapplers on a 22X10 wheel with 1/4” backspaces. He has the gmc brembo upgrade kit. He seems to be rubbing on the outer front fenders while turning with minimal flexing. I don’t have the specs for the offset nor the backspacing yet. I will be getting that info tomorrow. Any ideas on what he needs to do to minimize or eliminate the rubbing? He put me in charge of figuring this stuff out haha. Thanks!